High Level Design
Overview
A project manager running multiple projects will want to know on a periodic basis how his or her projects are doing at that point in time so that he/she can make changes if the project is off-schedule or if it is costing more. Earned Value Analysis is a project management technique and a standard that can be used to measure a project’s progress at any given point in time, forecasting its final cost, analyzing variances in schedule and cost as time proceeds. It compares planned work with actual completed work. When a piece of work is completed, it is “earned”. The essential features of any EVM are:- A project plan that identifies work to be accomplished
- A valuation of the planned work, called Planned Value or Budgeted Cost of Work Scheduled
- Pre-defined “earning rules” (also called metrics) to quantify the accomplishment of work, called earned value (EV) or Budgeted cost of work performed (BCWP)
Goals
Improve project performance by tracking cost and schedule performance.
Objectives
- Maintain or improve cost and schedule based on project plan.
- Track cost estimate at completion to manage escalations.
KPI Architecture
| Objectives | KPIs | Measures | Data Source |
| Maintain or improve cost and schedule based on project plan | Earned Value (EV) | Actual Completion (%) * Budget At Completion | ProjectActuals, ProjectPlanDetails |
| Planned Value (PV) | Planned Completion (%) * Budget at Completion | ProjectPlanDetails | |
| Actual Cost (AC) | Sum of Cost | ProjectActuals | |
| Budget at Completion (BAC) | Sum of Total Budget | ProjectPlanDetails | |
| CPI | Earned Value / Actual Cost | ProjectActuals, ProjectPlanDetails | |
| SPI | Earned Value / Planned Value | ProjectActuals, ProjectPlanDetails | |
| Cost Variance | Earned Value – Total Actual Cost | ProjectActuals, ProjectPlanDetails | |
| Schedule Variance | Earned Value – Planned Value | ProjectActuals, ProjectPlanDetails | |
| Track cost estimate at completion to manage escalations | EAC – Estimate at Completion Based on Budgeted Cost
ETC – Estimate to Completion Based on Budgeted Cost |
EAC = AC + (BAC – EV)
ETC = EAC – AC |
ProjectActuals, ProjectPlanDetails |
| EAC – Estimate at Completion Based on Past Cost Performance
ETC – Estimate to Completion Based on Past Cost Performance |
EAC = AC + [(BAC – EV) / CPI]
ETC = EAC – AC |
ProjectActuals, ProjectPlanDetails | |
| EAC – Estimate at Completion Based on past schedule performance
ETC – Estimate to Completion Based on Past Schedule Performance |
EAC = AC + [(BAC – EV) / (CPI x SPI)]
ETC = EAC – AC |
ProjectActuals, ProjectPlanDetails |
Data Modeling (Elasticube Design)
The original tables from the data source contains 5 tables – ProjectDim, ProjectPlan, ProjectPlanDetails_Orig, ProjectActuals, ActualCost. In order to calculate the project statuses, some data manipulation was required. Two dimension tables, DimReportDate and DimMilestone and a fact table – ProjectPlanDetail was created from the underlying source tables.
Plugins & Scripts
Data Connectors
